Self-locking extension sleigh



H. O. ROISUM Apr1121, 1931.

SELF LocxrNG EXTENSIN sLEIGH Fuga July 19, 1928 4" Sheets-Sheet l Y E H April 2 1, 1'931.

H. o. RolsUM 1.802,219

SELF LOCKING EXTENSION SLEIGH I @.azlsam April 21,1931. H. FeolsuMvr 1,802,219

SELF LOCKING EXTENSION SLEIGH Filed July 19, 1928 plil 21, 1931. H, O, ROlSUM 1,802,219

SELF LOCKING EXTENSION SLEIGH Filed July 19, 192e 4 sheets-sheet 4 Patented Apr. 21, 1931 -PA'rEN'r OFFICE HANS Ol ROISUM, 0F MADISON, WISCONSIN SELF;LOCKING EXTENSION SLEIGH l Apbiieation filed July 19, 192e. serial No. 294,038.

Y This invention relates to a sleigh andit is aimed to provide a generally improved, comparatively inexpensive and more' eilicient sleigh which 4 is self-locking and extensible.

VAs sleighs are constructed at the present time, it requires tools and morethan one man to assembleand disassemble the same for storin'gor placing in use according to the particular season of the year.

This fact Vhas prevented more universal adoption of the sleigh on many small farms in particular. Itis a prime object of the present invention to provide a sleigh which can bereadily taken apartand assembled, Without the use of tools, and by one man.' Y

Another object is to provide a construction involving a novel anti-tipping mechanism. y

It is further aimed to provide a sleigh in a formembodying readily detachable sections hereinafter described and claimed with reference to accompanying drawings.

InV said drawings-:-

Figure 1 is a plan View of the improved sleigh, 'M Y Figure 2 isla side elevation thereof,

Figure 3 is a longitudinal 'sectional view taken on the linef3r43 of Figure 1,

Figure 4 is a longitudinal sectional view taken on the line'l-a ot Figure l;

Figure 5 is a transverse sectionalview taken on the line 5-'5 of Figure 1;

Figure G is a transverse sectional view taken Onthe line (-of Figure 1;

`Figure 7 isan enlarged plan view of the front draw bar and associated parts;

Figure 8 is a longitudinal sectional View taken on the line 8--8 of Figure 7 l Figure 9 is a cross sectional view taken on theline'9-9 of Figure 7 Figure 10 is a cross sectional view on the line 10-10 of Figure 9;

' Figure 11 is a cross sectional viewron the line 1111ofFigure 5; j

Figure 12 is a plan View, partly broken away, illustrating the connection of brace rods lfor the rear draw bar to the reach; and

Figure 13 is a cross sectional View on the line 134-13 ofFigure 12.

In carrying out the invention, front and rear axles A and B are provided each consistingof a metallic tube having its ends equipped with screw threaded plugs 10 to exclude foreign matter. n

Attached adjacent each end of the axle A is a front runner C while similar runners D are attached adjacent each end of the axle B. The runners C and D are similar, each consisting of a body 11 carrying al runner proper or bar at 12.\ The bars 12 have in their under surfaces, longitudinal grooves 13 which aidin so engaging the snow as to prevent sliding and such bars 12 also have lateral flanges 1l, providing shoulders at their under surfaces for engaging with the snow, and which 1 iind practically double theV load-sustaining capacity of the sleigh. Attached to each body is a knee 15. Each knee has a bearing sleeve 16 journaled on the respective axles and itv also has a housing 17 slidably mounting a 'latch rod -18 which is adapted for selected engagementV with a series of elongated slots 19 in the respective axles, according to the distance apart it is desired to arrange the runners C and D. Such latch members 18have abutments 2O fixed thereon which are located in the members 17. Also located in the members or cylinders 17 are expansive springs 21 which -abut the members at one end'and the abutments 2O at the other end,

thus urging the latch 18 into projected position and maintaining it inthe selected 'slot 19. Such latches 1S are manually oper able to which end they have linger engaging lugs or buttons 22. This construction enables manual detachment, by one man, oi the runners C and D and the axles A and B.

The front andrear runners C and D, have i drawA bars E and F atY the front thereof. Such draw bars are similar and may consist of a central tube 23V and outer tubes 24 in telescopic engagement therewith and adapted forV adjustment into and out of the same Vaccording to the distance apart the runners CfandD, as the case may be, are arranged.

YTo this end, the outer tubes 2a have a series of holes 25 therein adapted for Vengagement selectively by ypins 26` carried Aby spring` latches 27 which are fastened by rings 28, in any desired manner, to the tube 23.

At the outer end, tubes 24 are equipped with caps 29 which are equipped with hooks 30.

The runner bodies 11 have recesses 31 across which plates 32 are fastened and which have elongated slots 33 in registry with the recesses 31. The hooks 30 may be passed through the slots 33 and then turned at a right angle, as suggested by the dotted lines particularly in Figure 9, to the extent of ninety degrees, so as to overlap the plates 32 to minimize danger of accidental disconnection.

The caps Q9 to draw bars E and F are provided with ears or lugs 34. Each ear has an opening 35 therethrough from which a notch 36 branches.

Associated with the front draw bar E are brace rods 37. Such brace rods 37 have angularly depending ends 38 equipped with lugs 39. By reason of this construction, the brace rods 37 are attached to the adjacent ear 34 when the lugs 39 register with the notches 36. After such lugs are through the notches, the brace rods 37 are turned so that the notches and lugs are disalined and the brace rods are accordingly fastened thereto against danger of upward displacement. In addition, the forward ends of the brace rods 37 are equipped with eyelets or openings 40 through which a manually operable bolt 41 is passed and which may selectively pass through openings 4Q of a tongue 43. The bolt 41 has a head 44 thereon of such shape that it may readily pass through the slots or openings 42 and then be turned to prevent accidental displacement through such slots. Such head 44 prefer'- ably eoacts with a retainer plate separate from the tongue, having an opening through which the head 44 passes and accommodating the aforesaid turning of the bolt 41 so that the head 44 may overlap a portion of the retainer. Finger gripping or manipulating flanges 46 are provided on the bolts 41.

The tongue 43 is notched as shown in Figure 3 at 47 to snugly lit a portion of the sleeve 23 of the front draw bar and be fastened thereto by means of a bolt at 48. The tongue 43 is thus adapted to be applied and removed with the front draw bar E. To facilitate attaclnnent of a whifiletree, a spool 49 is suitably carried by the tongue 43 as shown.

The sleigh is constructed so as to prevent tipping when the draft team is turned at an angle of ninety degrees when started up, to which end, a ring 51 has depending rests 52 engaging the front axle A. Mounted on the ring 51 is a bolster 53. A bolt 54 passes through the bolster 53, ring 51 and axle A and an irregular bar 55 which is engaged in openings 56 and 57 provided in the ring and loosely in an opening 58 provided in a bracket 59 fastened to the rear of the tongue 43.

Mounted on the axle B is a rear bolster 60, being fastened to the axle as by means of bolts 61. A keeper 62 is fastened to the under surface of bolster 60 and together with the latter encloses a slot or opening 63 which accommodates the reach 64, whereby the rear axle and bolster may be slid along the reach 64 in the assembly or disassembly of the parts.

At the front, a bracket 65 is fastened to the reach and has diametrically opposite lugs 66 thereon. rlhe bolster 53 is provided with a socket or recess 67 receiving the forward end of the bracket 65 and which recess has grooves 68 leading thereto and arranged longitudinally of the bolster As a' result of this construction, the reach is adapted to be inserted when arranged substantially in alinement with the bolster and afterwards turned ninety degrees to its correct position.

The reach 64 in the rear of the bolster 53 is equipped with a plate 69 arranged against its under surface and held in place by a manually operable fastening 70 having finger gripping flanges 71 and a head 72 adapted for insertion through an opening in the plate 69, the reach 64, and a retainer 73, and thence be turned ninety degrees so as to overlap portions 74 of such retainer.

The plate 69 is provided with openings 75 therethrough which are detachably engageable by hooks 76 carried by brace rods 77 whosefrear ends are fastened similar to the brace rods 37 and are fastened in a similar manner to the ears or lugs 34 of the rear draw bar F. Head 72 may engage a flexible or resilient element 78 to aid in retaining it against accidental turning.

As a result of the construction described, the sleigh is made up of a number of units which may be readily disassembled for storage or assembled for use, according to the season of the year. Such assembly and disassembly may be accomplished readily by one man and without the use of tools. One unit of the device consists of front draw bar knees and the attached tongue 43; a vsecond unit consists of the front axle A and attached bolster; another unit consists of the rear axle B and attached bolster; a further unit consists of the four runners C and D; another unit consists of the draw bar and another unit consists of the rear draw bar, the latter being readily disconnectable `from the reach by removing the brace rods 77.

The sleigh may in any desired manner be equipped to support a load, such as a load ofl hay or any material desired. To this end, removable stakes GrA are selectively applied in openings 81 'in the bolsters 53 and Various changes may be resorted to provided they fall Within the spiritV and scope of the invention.

lVhat is claimed is:

A draw bar for al sleigh comprising a central tube,y outer tubes telescoped therein, said outer tubes having a series of openings therein, latch members comprising bands surrounding the eentralrtube Aand resilient latch arms extending therefrom having projections adapted for selective engagement with said openings7 and caps on the outer tubes provided with hooksffor detachable engagement with runners. Y

In testimony whereof I afiiX my signature.

HANS O. ROISUM. 

